Notably, most of the above work used loss functions derived from the F1 score. However, this measure has been criticised for insufficiently addressing false negatives [1]}, and may thus not be optimal in areas such as medical diagnosis. The MCC may also, as demonstrated in section REF , excessively emphasise false positives at the expense of false negatives. The G-Mean of Eq. (REF ), however, aggressively targets false negatives due to its product form, which is the reason we choose to use our approximated G-Mean loss [2]} in this current work.
